Weed exterminator



Feb. 18, 1930- J. J. SULLIVAN WEED EXTERMINATOR Fi iied March 8, 19 28 IN VEN TOR. JAMES J. SULLIVAN Mwmmswo? VOG-L ATTORNEY.

Patented Feb. 18, 1930 UNITED JAMES J. SULLIVAN, OF ARAPAHOE COUNTY, COLORADO WEED EXTERMINATOR- Application filed March 8,

This invention relates to devices for applying liquids to weeds for the purpose of killing weeds and has for objects toprovide a device of the class described which will be simple and effective in operation, in handy and convenient form for use and which will carry a substantial supply of the liquid to be used and which shall embody means for readily injecting such liquid into the root of the plant and also means for preventing plugging of the injecting device.

With the foregoing and other objects in view as will more fully appear from the following specifications 331d claims, the invention comprises certain novel constructions, combinations and arrangements of parts as hereinafter more fully described and claimed and as illustrated in the accompanying drawing in which will be characters of reference indicating corresponding parts throughout the various views and in which Figure I is an illustration of the complete device.

Figure II is a. central, longitudinal section 2 thereof.

Figure III is a cross section on line AA, Figure I.

Figure IV is a detailed central sectional View of the lower end of the device, illustrating the injecting structure with the plunger down in position to close the opening in the injector point.

Figure V is a view corresponding to Figure IV except that the plunger is shown in raised position, thus opening the injector point to permit the flow of the liquid.

The device consists of a barrel 1 of any suitable diameter and preferably of length a little shorter than an ordinary walking, cane. At its lower end, the barrel is provided with a cap 2 which may be threaded thereto as at 3, which cap is provided with a hollow injecting tube 4 tapered to a point as at 5. The tube 4 projects upwardly into the barrel 1 and the portion thereof within the barrel is provided with a plurality of slots or orifices 6 afiording communication between the interior of the tube 4 and the interior of the barrel 1 and also constituting runways for the lower end of the tube 4, if desired 1928. Serial No. 260,224.

the lugs of the plunger as hereafter de scribed.

At the top the barrel is provided with a handle 7 which may be threaded to the barrel as at 8. Within the top of the barrel there is, provided a rest 9 with an orifice therein, located in alignment with the tube 4 and through this orifice and extending downward into the tube 4 is a plunger 10 having a head 11 normally resting upon the rest .9 and a tapered or beveled point 12 adapted,

when the plunger is at its lowermost position, to align with the tapered point of and smoothly close the o ening in the lower end of the tube 4 where y, when the plunger is in said lowermost position, the tube and plunger together will form a solid point for making a hole in the root of the-plant to which the liquid is to be applied.

'The plunger is provided with lugs 13 sliding in slots 6 for preventing revolution of the plunger; and for maintaining the alignment of the point of the plunger with the point of the tube 4 when the plunger is at its lowest position.

A seat 14 is mounted upon the plunger and a compression spring 15 encircles the plunger between the seat 14 and the rest 9. The head 11 is provided with suitable finger engaging means 16 for lifting the plunger against the compression of the spring 15 with one finger of the hand which engages the handle 7 I A protective cap 17 maybe providedfor In operation the plunger is allowed to remain at its lowermost position, as shown in Figure II and the liquid to be used upon the plants is poured into the top of the barrel around the seat 9. The device is carried in one hand, by the handle 7', and being approximately the length of an ordinary walkingstick, the operator may remain substantially upright carrying the device and when it is desired to operate the device, the point 5 is inserted into the root of the plant. The plunger is thereupon lifted by means of the ring 16, thus opening the slot 6 as clearly indicated in Figure V, and allowing the liquid to fiow from the barrel through the slots into I the tube 4 and thence into the root ofthe plantwhereupon the ring 16 is released and the spring 15 shoots the plunger down to its lowermost position, i forcing the liquid out through the point of the-nozzle, closing the slot 6 and preventing further flow of the liquid and also closing the open lower endof the'nozzl'e and forming a. smooth, solid polnt for insertion into the root ofthe next plant. It will be obvious that this construction permits the injection into the root of the plant of any desired quantity of theiliquid up to capacity of the passage in the nozzle and at the same time prevents plugging with 15 dirtv orother material of the hollow point used to accomplish the injection. v In most cases a drop or two ofthe liquid will be'sufiicient so that after the point is inj ectedr into the root of theplant,the plunger 7 "20 will be lifted and allowed to snap back immediately, suflicient of the liquid passing into theinterior'of the tube 4 during an almost instantaneous opening and closing of the slots 6- by such lifting and release of the plunger; T

In thisway alarge quantity of the exterminating' liquid may be carried and may 1y close the lower; end of the tube, and orifices V in. the walls of the tube adapted to'be opened by retraction of the lower end of the plunger 7 to permit liquid to flow from the barrel into the tube below the end of the plunger.

4. In a weed exterminator having a liquidcarrying barrel, with a tube positioned in the lower end of the barrel and having a beveled point extending therebelow, a plunger in the tube. and. having a beveled point adapted to smoothly close the en'd'of the tube, and means to permit reciprocation, but to prevent rotation, of the plunger. 7 r i 5. In a weed exterminator having a liquidcarry-ing barrel and a ground piercing tube closing the lower end of the tube and means for preventing rotation. ofthe plunger.

In testimony-whereofll afiixmy signature.

JAMES SULLIVANi be injected into theroots of the plants withl v out bending or other Vinconvenienceto the operator i y Many changes in details of construction will beobvious to those-skilled in the art and many such changes can-be madewithout departing from the spirit and the scope of these specifications and the appendedclaims.

' I- olaimr" f 1 l In a weed exterminator, a liquid-carryingj barrel, a bevel pointed nozzle leading from one end thereof, a plunger slidably nozzle and having a point beveledto correspondwith the pointo'f the nozzle whereby, whenthe nozzle is closed by the plunger,

: the-'walls-of the nozzle point combined with said plunger point" form a substantially or smooth and solid point, and means for premounted within andadapted to close the venting revolution of the plunger relative to the nozzle. 7 V I Qj-In-a weed exterminator, a liquid-carrying barrel-, a pointed nozzle leading from one "within 5116 nozzle and having a point cor- "end; thereof, a plunger slidably mounted V respondingin shapewith the point of the o the plunger, the walls "of the nozzlepoint combined withsaid plunger point form a sub liquid to flow-from the barrel into the nozzle.

3. In a weed exterminator having a liquidnoz'zle whereby, when the nozzle is closed by v 'st a-ntially smooth and solid point, "lugsflcarried byfthe plunger andslots in-the walls of V the nozzle for said lugs and for. permitting "so carryingbarrel, a tubeltaperedto apointbelow the barrelandextending upwardly into the barrehfla plunger having a sliding fit 1'fifwithinthetube-and apointshapeditosmooth i 

